efuse: Checks errors of 4x coding scheme for BLOCK0 if so then abort

This commit is contained in:
KonstantinKondrashov 2021-08-11 19:06:48 +05:00
parent 46f0313d6b
commit 5ec9baff36
10 changed files with 82 additions and 0 deletions

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@ -63,6 +63,11 @@ void esp_efuse_utility_clear_program_registers(void)
efuse_hal_clear_program_registers();
}
esp_err_t esp_efuse_utility_check_errors(void)
{
return ESP_OK;
}
// Burn values written to the efuse write registers
esp_err_t esp_efuse_utility_burn_chip(void)
{

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@ -54,6 +54,11 @@ void esp_efuse_utility_clear_program_registers(void)
ets_efuse_clear_program_registers();
}
esp_err_t esp_efuse_utility_check_errors(void)
{
return ESP_OK;
}
// Burn values written to the efuse write registers
esp_err_t esp_efuse_utility_burn_chip(void)
{

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@ -68,6 +68,26 @@ void esp_efuse_utility_clear_program_registers(void)
efuse_hal_clear_program_registers();
}
esp_err_t esp_efuse_utility_check_errors(void)
{
if (efuse_ll_get_err_rst_enable()) {
for (unsigned i = 0; i < 5; i++) {
uint32_t error_reg = REG_READ(EFUSE_RD_REPEAT_ERR0_REG + i * 4);
if (error_reg) {
uint32_t data_reg = REG_READ(EFUSE_RD_REPEAT_DATA0_REG + i * 4);
if (error_reg & data_reg) {
// For 0001 situation (4x coding scheme):
// an error bit points that data bit is wrong in case the data bit equals 1. (need to reboot in this case).
ESP_EARLY_LOGE(TAG, "Error in EFUSE_RD_REPEAT_DATA%d_REG of BLOCK0 (error_reg=0x%08x, data_reg=0x%08x). Need to reboot", i, error_reg, data_reg);
efuse_hal_read();
return ESP_FAIL;
}
}
}
}
return ESP_OK;
}
// Burn values written to the efuse write registers
esp_err_t esp_efuse_utility_burn_chip(void)
{

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@ -68,6 +68,11 @@ void esp_efuse_utility_clear_program_registers(void)
efuse_hal_clear_program_registers();
}
esp_err_t esp_efuse_utility_check_errors(void)
{
return ESP_OK;
}
// Burn values written to the efuse write registers
esp_err_t esp_efuse_utility_burn_chip(void)
{

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@ -68,6 +68,11 @@ void esp_efuse_utility_clear_program_registers(void)
efuse_hal_clear_program_registers();
}
esp_err_t esp_efuse_utility_check_errors(void)
{
return ESP_OK;
}
// Burn values written to the efuse write registers
esp_err_t esp_efuse_utility_burn_chip(void)
{

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@ -68,6 +68,11 @@ void esp_efuse_utility_clear_program_registers(void)
efuse_hal_clear_program_registers();
}
esp_err_t esp_efuse_utility_check_errors(void)
{
return ESP_OK;
}
// Burn values written to the efuse write registers
esp_err_t esp_efuse_utility_burn_chip(void)
{

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@ -765,6 +765,20 @@ esp_err_t esp_efuse_write_keys(const esp_efuse_purpose_t purposes[], uint8_t key
esp_err_t esp_secure_boot_read_key_digests(ets_secure_boot_key_digests_t *trusted_keys);
#endif
/**
* @brief Checks eFuse errors in BLOCK0.
*
* @note Refers to ESP32-C3 only.
*
* It does a BLOCK0 check if eFuse EFUSE_ERR_RST_ENABLE is set.
* If BLOCK0 has an error, it prints the error and returns ESP_FAIL, which should be treated as esp_restart.
*
* @return
* - ESP_OK: No errors in BLOCK0.
* - ESP_FAIL: Error in BLOCK0 requiring reboot.
*/
esp_err_t esp_efuse_check_errors(void);
#ifdef __cplusplus
}
#endif

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@ -160,6 +160,20 @@ void esp_efuse_utility_erase_virt_blocks(void);
*/
esp_err_t esp_efuse_utility_apply_new_coding_scheme(void);
/**
* @brief Checks eFuse errors in BLOCK0.
*
* @note Refers to ESP32-C3 only.
*
* It does a BLOCK0 check if eFuse EFUSE_ERR_RST_ENABLE is set.
* If BLOCK0 has an error, it prints the error and returns ESP_FAIL, which should be treated as esp_restart.
*
* @return
* - ESP_OK: No errors in BLOCK0.
* - ESP_FAIL: Error in BLOCK0 requiring reboot.
*/
esp_err_t esp_efuse_utility_check_errors(void);
/**
* @brief Efuse read operation: copies data from physical efuses to efuse read registers.
*/

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@ -287,3 +287,8 @@ esp_err_t esp_efuse_batch_write_commit(void)
}
return ESP_OK;
}
esp_err_t esp_efuse_check_errors(void)
{
return esp_efuse_utility_check_errors();
}

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@ -345,6 +345,10 @@ void IRAM_ATTR call_start_cpu0(void)
Cache_Resume_DCache(0);
#endif // CONFIG_IDF_TARGET_ESP32S3
if (esp_efuse_check_errors() != ESP_OK) {
esp_restart();
}
#if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32H2 || CONFIG_IDF_TARGET_ESP32C2
/* Configure the Cache MMU size for instruction and rodata in flash. */
extern uint32_t Cache_Set_IDROM_MMU_Size(uint32_t irom_size, uint32_t drom_size);